14 ideas
| 20771 | Six parts: dialectic, rhetoric, ethics, politics, physics, theology [Cleanthes, by Diog. Laertius] |
| 10245 | One geometry cannot be more true than another [Poincaré] |
| 6028 | Bodies interact with other bodies, and cuts cause pain, and shame causes blushing, so the soul is a body [Cleanthes, by Nemesius] |
| 20831 | The soul suffers when the body hurts, creates redness from shame, and pallor from fear [Cleanthes] |
| 23438 | Full rationality must include morality [Foot] |
| 23437 | Practical reason is goodness in choosing actions [Foot] |
| 23436 | It is an odd Humean view to think a reason to act must always involve caring [Foot] |
| 23431 | Human defects are just like plant or animal defects [Foot] |
| 23432 | Concepts such as function, welfare, flourishing and interests only apply to living things [Foot] |
| 23433 | Humans need courage like a plant needs roots [Foot] |
| 23434 | There is no fact-value gap in 'owls should see in the dark' [Foot] |
| 23439 | Principles are not ultimate, but arise from the necessities of human life [Foot] |
| 23435 | If you demonstrate the reason to act, there is no further question of 'why should I?' [Foot] |
| 5993 | The ascending scale of living creatures requires a perfect being [Cleanthes, by Tieleman] |